What type of brake pads work well? What type of brake pad is better?

Brake pads are divided into drum brake pads and disc brake pads according to the brake system, and the brake efficiency of the drum type is low, so the market is basically disc-shaped.

According to the material, it is divided into asbestos type, semi-metal type, and non-asbestos organic type.

The asbestos type has been eliminated, mainly because 1. asbestos is medically recognized as a carcinogen, 2. asbestos has poor thermal conductivity, and repeated braking will accumulate a large amount of heat, which will then lead to serious thermal attenuation, resulting in brake failure and danger.

The semi-metal hybrid brake pad has a high metal content inside, so the strength is high, but the friction of the brake pad is smaller than that of asbestos, and the vehicle needs a higher braking force to achieve the same braking effect, so the noise is high and the wear is high when braking.

Non-asbestos organic brake pads, referred to as NAO brake pads, are made of glass fiber, aromatic polyester fiber and other fibers such as carbon or pottery as reinforcement materials, to achieve the purpose of long service life and durability, but the cost is higher than the first two.

Bosch is a world-renowned brake manufacturer, a Fortune 500 company with factories all over the world, and its products are produced according to strict quality standards. Whether in the field of individual components or complete systems, Bosch guarantees a high market coverage. It has a complete range of brake pads, and its products are designated as original parts by the world's major automobile manufacturers.

All aspects are considered, and the brand of RAL brake pads can be obtained, and it is very good in all aspects.

Bosch is a world-renowned manufacturer of brakes.

Specifically, it can be divided into the following points: High coefficient of friction stability: In the case of high temperature, pressure and speed, the friction coefficient of the brake pad needs to be high enough and have sufficient stability.

High adhesion resistance: It does not bond with the working surface of the friction pair, and does not produce peeling, abrasion, welding and other destructive damage to the friction surface. High heat resistance:

To be able to maintain the instantaneous friction temperature rise to 900 1000 and the long-term friction temperature rise to 300 400, its mechanical properties and friction properties remain basically unchanged. High thermophysical stability: The friction material should be able to withstand frequent thermal changes, i.e. resist thermal fatigue, while also having a fairly high thermal conductivity, specific calorific value and the smallest possible coefficient of linear expansion.

Sufficient mechanical strength: The material should not produce cracks, delamination, deep cracks, spalling and detachment from the steel back; A feasible rate of wear is guaranteed. High abrasion resistance:

The wear resistance depends mainly on the operating conditions of the brake pads. For powder metallurgy material brake blades, the allowable wear amount of the UIC is cm2 mJ to ensure that the EMU brake blades have a long enough life. High environmental friendliness:

Braking should be smooth and low noise; Asbestos and lead, which are not conducive to environmental protection, cannot be added to the material; It should be able to withstand moisture for a long time and at a temperature range of 60 to 50 with strong corrosion resistance.

Of course, disc brake pads are better. Others are slow.

The brake pads we use now can be divided into three categories according to the abrasive, one is asbestos, one is semi-metal and half asbestos, and the other is ceramic. Asbestos materials are not environmentally friendly, resistant to high temperatures, and have average durability. It is currently used less and is not recommended.

Semi-metal and semi-asbestos brake pads are the most widely used and have a lot of original matching options. The overall effect of the brake pads of this material is good, and there are no obvious shortcomings, so they are widely used. Semi-metallic brake pads can be divided into two categories:

Dust, hail and a small amount of dust. Generally, Japanese and Korean cars use low-dust formulas. There is no sail because Japanese and Korean cars pay more attention to cleanliness, so brake pads with less dust are not easy to appear black and gray on the wheels.

European and American cars prefer to use brake pads with dust. This type of brake pad has a high coefficient of friction, is relatively more sensitive to braking, and has greater braking force, but the disadvantage is that the wheel hub is prone to black ash, and the service life is not as good as that of low-dust brake pads. Ceramic brake pads are a type that has become popular in recent years.

Ceramic brake pads are not made of ceramic. The principle of ceramic brake pads is that under the high temperature conditions of brake friction, the abrasive of the brake pads will be sintered into a ceramic layer on the surface, which can improve the high temperature resistance and braking performance of the brake pads. Usually when we buy brake pads, we try to choose some big brand products, preferably a brand that specializes in manufacturing brake systems.

For example, foreign Filodo, Tamington, Trina Solar, and Bosch are all first-line brands, and basically these brands of brake pads are used by big brand car companies. The domestic golden unicorn, Lu Buyu can also be used, and its performance is also good.

Millions of car purchase subsidies.